复合型土钉墙可应用于含水丰富的粉细砂、砂卵石地层,亦可应用于厚度一般小于4m、无临时自稳能力的淤泥等饱和软弱地层,可兼作挡水结构,保证支护工作面不出现流砂或淤泥流动等地层损失现象。现主要结合某栋商业大厦深基坑工程案例,介绍了土钉支护技术在该工程中的具体应用。 Composite soil nailing wall can be applied to water-rich fine sand, gravel stratum, can also be applied to the thickness of generally less than 4m, no temporary self-stability of saturated silt and other soft soil formation, can also serve as a retaining structure to ensure support work There is no formation loss such as runoff or silt flow. Now mainly combined with a commercial building deep foundation pit project case, describes the soil nailing support technology in the project specific application.